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ContentStream xref 

1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   * http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.chemistry.opencmis.commons.data;
20  
21  import java.io.InputStream;
22  import java.math.BigInteger;
23  
24  /**
25   * Content stream.
26   */
27  public interface ContentStream extends ExtensionsData {
28  
29      /**
30       * Returns the length of stream.
31       * 
32       * @return the length of the stream in bytes or <code>-1</code> if the
33       *         length is unknown
34       */
35      long getLength();
36  
37      /**
38       * Returns the length of stream.
39       * 
40       * @return the length of the stream in bytes or <code>null</code> if the
41       *         length is unknown
42       */
43      BigInteger getBigLength();
44  
45      /**
46       * Returns the MIME type of the stream.
47       * 
48       * @return the MIME type of the stream or <code>null</code> if the MIME type
49       *         is unknown
50       */
51      String getMimeType();
52  
53      /**
54       * Returns the file name of the stream.
55       * 
56       * @return the file name of the stream or <code>null</code> if the file name
57       *         is unknown
58       */
59      String getFileName();
60  
61      /**
62       * Returns the stream.
63       * 
64       * It is important to close this stream properly!
65       */
66      InputStream getStream();
67  }